SGM4992 Datasheet, PDF (1/10 Pages) SG Micro Corp – 1.1W Stereo Audio Power Amplifier

SGM4992
1.1W Stereo Audio Power Amplifier
GENERAL DESCRIPTION
The SGM4992 is a stereo audio power amplifier that is
designed for demanding applications in mobile phones
and other portable communication device applications. It
is capable of delivering 1.1W of continuous average
power per channel into an 8Ω bridge tied load (BTL) with
typically 1% distortion (THD+N) from a 5V power supply.
The SGM4992 features independent shutdown control for
each channel and a low power consumption shutdown
mode, which is achieved by driving both shutdown pins
with logic low. Additionally, it features an internal thermal
shutdown protection mechanism.
FEATURES
 1.1W into 8Ω BTL Load from 5V Supply at
THD+N = 1% (Typical, per Channel)
 Excellent PSRR: Direct Connection to Battery
 Unity Gain Stable
 2.5V to 5.5V Operation
 Shutdown Current: 0.1μA (TYP)
 Shutdown Pin is Compatible with 1.8V Logic
 Improved Pop/Click Circuitry
 No Output Coupling Capacitors
 External Gain Configuration Capability
 -40℃ to +85℃ Operating Temperature Range
 Available in Green TDFN-4×3-14L Package
The SGM4992 does not require output coupling
capacitors or bootstrap capacitors, and therefore is ideally
suited for mobile phone and other low voltage
applications where minimal power consumption is a
primary requirement.
The SGM4992 contains advanced pop/click circuitry
which eliminates noise which would otherwise occur
during turn-on and turn-off transitions.
APPLICATIONS
Portable Systems
MP3 Players
Mobile Phones
PDAs
GPS
The SGM4992 is unity-gain stable and can be configured
by external gain-setting resistors.
The SGM4992 is available in Green TDFN-4×3-14L
package. It operates over an ambient temperature range
of -40℃ to +85℃.
SG Micro Corp
www.sg-micro.com
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